Free browser-based data tool

JSON Structure Analyzer

Understand the shape and complexity of any JSON document. Everything stays in your browser.

Your files never leave your computer.All processing happens locally inside your browser.

  • Measure depth, containers, leaves, and normalized paths
  • Inspect repeated structures and deepest object or array paths
  • Copy or download a deterministic local JSON report
1

Upload JSON

Choose a JSON file. It is read only by this browser tab.

Drop a JSON file here

or use the file browser

2

Paste and validate JSON

Valid documents are ready for deterministic structural analysis.

Paste JSON or upload a file to begin.

What JSON structure analysis is

A measurable view of document shape and complexity

Structure analysis counts containers and leaves, measures nesting depth, normalizes repeated array paths, and summarizes where objects and arrays occur without changing the source.

API inspection

Understand unfamiliar responses before integration

Profile saved API payloads to locate deeply nested resources, repeated collections, and the paths that carry most of the document structure before writing integration code.

Schema understanding

Explore shape before formal schema work

Use normalized paths and observed node types to understand a document before creating validation rules. This report measures existing data; it does not infer or generate a schema.

Data quality

Spot structural inconsistency with measured summaries

Compare child-count ranges and observed types at each path. Repeated array structures are grouped consistently, making unexpected shape differences easier to inspect.

Examples

Answer practical structure questions quickly

MetricQuestion answered
Maximum depthHow deeply nested is this payload?
Repeated pathsWhich structures recur inside arrays?
Child rangeDo objects at one path have different shapes?

Inspection utilities

Continue with related UtilityDock inspection workflows

FAQ

Questions about JSON structure analysis

Does UtilityDock upload or store my JSON?

No. Your files never leave your computer. Validation, traversal, structural analysis, copying, and report creation all happen locally inside your browser.

How is maximum nesting depth measured?

The root is depth zero. Each property or array item below it adds one level, and the report returns the greatest measured depth.

What is a normalized JSON path?

A normalized path replaces individual array indexes with [*], grouping comparable values and repeated structures under one stable path.

What counts as a leaf value?

Strings, numbers, booleans, and null values are leaves. Objects and arrays are counted separately as containers.

Does the tool generate a schema or change my JSON?

No. Version 1 is read-only and does not generate schemas, edit trees, visualize graphs, optimize data, or call APIs.